<template>
	<view>
    <!-- 搜索组件区域start -->
    <view class="search-box">
      <my-search @search="gotoSearch"></my-search>
    </view>
    <!-- 搜索组件区域end -->
    
		<!-- 轮播图区域start -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item,i) in swiperList" :key="i">
        <navigator class="swiper-item">
          <image :src="item.image_src"></image>
        </navigator>
      </swiper-item>
    </swiper>
    <!-- 轮播图区域end -->
    
    <!-- 分类导航区域start -->
    <view class="nav-list">
      <view class="nav-item" v-for="(item,i) in navList" :key="i" @click="navClickHandler(item)">
        <image :src="item.image_src" class="nav-img"></image>
      </view>
    </view>
    <!-- 分类导航区域end -->
    
   <!-- 楼层区域start -->
    <view class="floor-list">
      <!-- 楼层 item 项 -->
      <view class="floor-item" v-for="(item, i) in floorList" :key="i">
        <!-- 楼层标题 -->
        <image :src="item.floor_title.image_src" class="floor-title"></image>
        <!-- 楼层图片区域start -->
        <view class="floor-img-box">
          <!-- 左侧大图片的盒子 -->
          <navigator class="left-img-box" :url='item.product_list[0].url'>
            <image :src="item.product_list[0].image_src" :style="{width: item.product_list[0].image_width + 'rpx'}" mode="widthFix"></image>
          </navigator>
          <!-- 右侧 4 个小图片的盒子 -->
          <view class="right-img-box">
            <navigator class="right-img-item" v-for="(item2, i2) in item.product_list" :key="i2" v-if="i2 !== 0" :url="item2.url">
              <image :src="item2.image_src" mode="widthFix" :style="{width: item2.image_width + 'rpx'}"></image>
            </navigator>
          </view>
        </view>
         <!-- 楼层图片区域end -->
      </view>
    </view>
    <!-- 楼层区域end -->
	</view>
</template>

<script>
  // 引入封装的mixins模块
  import badgeMix from '@/mixins/tabbar-badge.js'
	export default {
    mixins:[badgeMix],
		data() {
			return {
        //轮播图数据
        swiperList:[],
        //分类导航数据
        navList:[],
        //楼层的数据列表
        floorList:[]
			};
		},
    methods:{
      //获取轮播图数据
      async getSwiperList(){
        const {data:res} =await uni.$http.get('/api/public/v1/home/swiperdata')
        //请求失败
        if(res.meta.status!==200) return uni.$showMsg()
        //请求成功
        this.swiperList=res.message
      },
      
      //获取分类导航数据
      async getNavList(){
        const {data:res} =await uni.$http.get('/api/public/v1/home/catitems')
        if(res.meta.status!==200) return uni.$showMsg()
        this.navList=res.message
      },
      
      //分类nav-item被点击时处理函数
      navClickHandler(item){
        if(item.name==='分类'){
          uni.switchTab({
            url:'/pages/cate/cate'
          })
        }
      },
      
      //获取分类列表数据
      async getFloorList(){
        const {data:res} =await uni.$http.get('/api/public/v1/home/floordata')
        if(res.meta.status!==200) return uni.$showMsg()
        //处理navigator_url的url地址 获取?后面的字符串
        res.message.forEach(floor=>{
          floor.product_list.forEach(prod=>{
            prod.url='/subpkg/goods_list/goods_list?'+prod.navigator_url.split('?')[1]
          })
        })
        this.floorList=res.message
      },
      
      //跳转到分包中的搜索页面
      gotoSearch(){
        uni.navigateTo({
          url:'/subpkg/search/search'
        })
      },
      
    },
    onLoad(){
      //小程序页面加载时 调用轮播图获取数据
      this.getSwiperList()
      //获取分类导航数据
      this.getNavList()
      //获取楼层列表数据
      this.getFloorList()
    }
	}
</script>

<style lang="scss">
  swiper {
   height: 330rpx;
   .swiper-item,
   image {
     width: 100%;
     height: 100%;
   }
  }
  .nav-list{
    display: flex;
    justify-content: space-around;
    margin: 15px 0;
    .nav-img{
      width: 128rpx;
      height: 140rpx;
    }
  }
  .floor-title {
    height: 60rpx;
    width: 100%;
    display: flex;
  }
  .right-img-box {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
  }
  .floor-img-box {
    display: flex;
    padding-left: 10rpx;
  }
  .search-box{
    position: sticky;  //设置定位效果为 "吸顶"
    top:0;   //吸顶位置
    z-index: 999;  //提高层级 防止被轮播图覆盖
  }

</style>
